Here’s a 1993 Williams STTNG in for repair and an LED conversion. LEDs really make this game pop visually. I installed an LED kit from Coin Taker. Common failures for this game are the ball trough opto boards and many of the other optos used in the subway ramp under the playfield. The cannons on the sling shots typically have broken wires as well. The left one gets hammered the most because it is used at the start of every Borg mutliball. It’s best to completely rewire both cannons.